A whole-house water softener combined with an ion exchange filter softens your water and reduces the levels of some contaminants.

Environmental Working Group is a 501(c)(3) nonprofit corporation, EIN 52-2148600. Copyright © 2024. Environmental Working Group. All Rights Reserved. Contact Us | Privacy Policy | Legal Disclaimer | Reprint Permission Information

Note: This site is intended for trade professionals who already have an account with us. If you are a trade professional and do not already have a web account established with us, please contact your local store to create one for you.

EWG’s Tap Water Database is provided solely for your personal, non-commercial use. You may not copy, reproduce, republish or distribute information from EWG’s Tap Water Database without EWG’s prior written permission. For information about licensing EWG data and analyses, contact permissionrequests[at]ewg.org.

Whether you want the least expensive or most effective filter, a filter to soften hard water or one to remove specific contaminants, you can find options below.

A carbon filter can reduce the levels of many common contaminants, such as lead and disinfection byproducts. There are many options for carbon filters, from countertop pitcher filters to faucet-mounted filters, undersink filters and whole-house filters.